CVE-2021-32822 - CVE House
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Status published Medium CVE-2021-32822

File disclosure in hbs

Vulnerability Description

The npm hbs package is an Express view engine wrapper for Handlebars. Depending on usage, users of hbs may be vulnerable to a file disclosure vulnerability. There is currently no patch for this vulnerability. hbs mixes pure template data with engine configuration options through the Express render API. By overwriting internal configuration options a file disclosure vulnerability may be triggered in downstream applications. For an example PoC see the referenced GHSL-2021-020.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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CVE-2024-43799
send vulnerable to template injection that can lead to XSS
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Affected Vendor

Affected Software

hbs
Vulnerable Versions:
all

Timeline

Official Publish: August 16th, 2021
Last Modified: August 3rd, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N

Weaknesses (CWE)

CWE-538

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.